Overcorrective shoe for talipes varus



April s, 1941. W, o. MINQR OVERCORRECTIVE SHOE FOR TALIPES VARUS FiledJuly 27, 1959 Tui. 1

INVEN 1 OR. W/L/fw 0, /V//va/Y. BY

ATT Eys.

Patented Apr. 8, 1941 ariane OVERCORRECTIVE SHOE FR TALIPES VARUSlWilliam 0i. Minor, Atlanta, Ga., assigner to Borothy C1. Minor,Atlanta, Ga.

Application July 27, 1939, Serial No. 286,745

(Cl. Sti-8.5)

1 Claim.

` of the foot.

In the treatment of talipes varus, it is common practice to keep thedeformed foot in a cast for a relatively long period of time duringwhich the bones, muscles and ligaments are rigidly held in a correctiveposition. When the cast has been removed, there is a tendency for thefoot to return to the original deformed condition unless correctiveshoes are applied. This tendency is so marked that a normally shapedshoe fails to hold the foot in the normal position and for that reason Ihave found it advantageous to provide shoes which overcorrect thedeformity. I'he degree of i overcorrection necessary depends upon theoriginal degree of deformity of the foot, the nature` of the deformityand the extent of the correction which has been secured by treatment inthe cast.

Other objects and features of the invention will be understood from theaccompanying drawing and the following description and claim. Since theform of a shoe follows closely the form of the last on which it is made,the shape of the shoe is best described with reference to the last.Several of the figures, therefore, show the last rather than the shoe.

Fig. 1 is a plan view of a preferred form of last on which a shoe may bebuilt in accordance with the invention. Fig. 2 is a rear View thereofwith certain parts of the shoe added thereto. Fig. 3

is a vertical sectional View taken on the line 3 3 of Fig. l with theinsole added thereto. Fig. fi is a rear View of a shoe constructed onthe last illustrated.

The deformation known as talipes varus consists of an inward turning ofthe forepart of the foot and an outward rolling of the ankle such thatthe outer toes and outer edge of the foot are lowermost. To provide acorrection for this condition, the last Il) shown in Fig. 1, andconsequently the shoe formed on said last, is .formed with the axis AMBof the forepart of the foot inclined outwardly with respect to the axisA-C of the heel portion. This outward inclination of the axis of theforepart is technically known as abduction To provide an overcorrection,in cases in which the principal deformation is in the heel portion ofthe. foot, the last is formed as best shown in Fig. 2 with theundersurface II of the heel portion upwardly and outwardly inclined withrespect to the undersurface of the forward portion, the relativeposition of which is indicated by the broken line D-E. The heel axis F-Gis inclined inwardly from the vertical. The line F-G i represents theextreme rear surface ofthe heel of the last and in normal shoes issubstantially vertical.

In constructing a shoe on this last, a wedge piece l2 having thehorizontal .extent indicated in Fig. l is applied to the heel of theinsole i3 between the same and the last. The outer corner I4 of the lastis rounded and the wedge piece is provided with a lip I5 closely fittingthe curvature of the last. In Fig. 2 the undersurface of the heel of thenished shoe is indicated by the broken line I6. In the forward part ofthe shoe as shown in Fig. 3 the lower surface of the last Ill issubstantially straight across or slightly rounded in the downwarddirection as in normal shoes. The interior foot bearing surface of theforward part of the shoe is thus substantially parallel to theundersurface of the outsole indicated in Fig. 3 by the broken line Il.

In a shoe constructed on the last just described and shown in Fig. 4,the rear portion of the shoe is inclined inwardly with respect to theundersurface of the heel. The inner foot bearing surface of the heelportion represented by the upper surface of the wedge I2 and insole i3is inclined upwardly and outwardly with respect to the un dersurface ofthe heel of the shoe. This construction gives to the heel portion of thefoot an outward twist with respect to the ankle whichl when combinedwith the abducted forward portion of the shoe provides an overcorrectionresisting the tendency of the ankle to roll outwardly and to return to'its original deformed condition.

'Ihe provision of the rounded corner lil of the last and theaccompanying lip on the wedge piece prevents the heel of the foot fromrunning over the edge of the wedge piece and insole and pressing undulyon the upper. It thus serves to preserve the form of the shoe andprevents callouses forming on the side of the foot at this point.

The shape of the shoe constructed in accordance with the invention hasbeen indicated by describing the last on which it is made.Constructional features of the shoe which distinguish from the usualpractice have been illustrated. In other respects, norma] shoe makingpractice is followed and need not be described in detail. The details ofthe invention as herein disclosed may be varied without departing fromthe scope thereof as defined in the appended claim.

The invention claimed is:

An overcorrective shoe for talipes varus having the forward portionmaterially abducted, having the interior foot bearing surface of theforward part substantially parallel with the plane of the undersurfaceof the outsole, and the interior foot bearing surface of the heelportion upwardly and outwardly inclined with respect to said plane.

WILLIAM O. MINOR.

